What is the primary function of TFM, the key weapon against Sea Lamprey larvae?
Answer
It is a photosensitive lampricide highly specific to sea lamprey larvae
The ongoing control program coordinated by the Great Lakes Fishery Commission heavily relies on a chemical agent known as TFM, which stands for 3-trifluoromethyl-4-nitrophenol. TFM functions as a lampricide, meaning it is toxic to lamprey. A key attribute making TFM valuable for ecosystem management is its high specificity; when applied correctly to spawning streams, it effectively targets and kills the sea lamprey larvae while sparing desirable native fish populations, such as lake trout. Furthermore, TFM possesses photosensitive properties, meaning it naturally degrades when exposed to sunlight, preventing long-term accumulation within the environment.
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